diff --git a/src/cls/History/ActiveMembers.cls b/src/cls/History/ActiveMembers.cls
index 12fdf0d..24736c6 100644
--- a/src/cls/History/ActiveMembers.cls
+++ b/src/cls/History/ActiveMembers.cls
@@ -1,4 +1,4 @@
-Class History.ActiveMembers Extends %Persistent
+Class History.ActiveMembers Extends %Persistent [ DependsOn = Community.Member ]
 {
 
 Parameter DSTIME = "AUTO";
diff --git a/src/cls/History/AvgComments.cls b/src/cls/History/AvgComments.cls
index aebadef..cf5a071 100644
--- a/src/cls/History/AvgComments.cls
+++ b/src/cls/History/AvgComments.cls
@@ -1,4 +1,4 @@
-Class History.AvgComments Extends %Persistent
+Class History.AvgComments Extends %Persistent [ DependsOn = Community.Comment ]
 {
 
 Parameter DSTIME = "AUTO";
diff --git a/src/cls/History/AvgPosts.cls b/src/cls/History/AvgPosts.cls
index f312c02..b2afc83 100644
--- a/src/cls/History/AvgPosts.cls
+++ b/src/cls/History/AvgPosts.cls
@@ -1,4 +1,4 @@
-Class History.AvgPosts Extends %Persistent
+Class History.AvgPosts Extends %Persistent [ DependsOn = Community.Post ]
 {
 
 Parameter DSTIME = "AUTO";
diff --git a/src/cls/History/Views.cls b/src/cls/History/Views.cls
index bebf8c6..91a6e7c 100644
--- a/src/cls/History/Views.cls
+++ b/src/cls/History/Views.cls
@@ -1,4 +1,4 @@
-Class History.Views Extends %Persistent
+Class History.Views Extends %Persistent [ DependsOn = Community.Post ]
 {
 
 Parameter DSTIME = "AUTO";